I have a Munchkin 199M Boiler that started acting up recently. When the boiler goes to light, it sonds like some one shooting skeet in my basement. The first time this happened when I was standing next to the boiler, I nearly jumped out of my skin. I think this backfiring also caused the demise of the plastic induction fan impeller, which fortunately still had 3 months left on the warranty, so I have the new aluminum fan now installed. However, the detonation problem still exists and the Service Techs and myself are stumped as to the cause. Has anyone heard of this happeneng and know the cause? I've found references to this in other posts on the net, but no one has yet posted a definitive answer. Help!
- posted
16 years ago